His tenure as a playcaller began in 2008 when he replaced Mike Sherman as the Houston Texans playcaller. He then followed his father to Washington, where he called plays for the past four years.
Shanahan became the NFL's youngest offensive coordinator when the Texans promoted him from the position of quarterback coach at the ripe age of 28.
The Redskins (3-13) struggled last season, but the offense wasn't the main reason this 2012 playoff team tanked. The Redskins offense was ranked 23rd in points per game (20.9), but finished ninth in yards (369.7) and fifth in rushing yards per game (135.2) last season.
Shanahan's Redskins offense ranked fifth in the NFL in yards per game (383.2) in 2012, and fourth in points, averaging 27.2 per game.
In 2011, before Robert Griffin III's arrival, the Redskins ranked 16th in yards per game, averaging 336.7 yards per contest, and averaged 18 per contest, which ranked the Shanahan's unit 26th in the NFL.
Shanahan hasn't just worked for his father. He's also worked for Jon Gruden and former Texans coach Gary Kubiak.
The Dolphins also interviewed Eagles quarterback coach Bill Lazor earlier this week, and have expressed interest in Kubiak, and Packers quarterback coach Ben McAdoo, who is also a candidate to become the Browns head coach.
Philbin worked with McAdoo during their tenure together in Green Bay.
Kubiak is a candidate to become the Detroit Lions' next head coach, and if he does get another head coach opportunity it is possible that Kyle Shanahan would join him considering they've worked together before.